public void Save(IOTMessage message)
{
switch (message.Type)
{
case "SensorData":
sensorDBContext.SensorData.Add((SensorData)message.Data);
break;
default: break;
}
sensorDBContext.SaveChanges();
}
private static void ThreshholdDetect(DeviceClient s_deviceClient, IOTMessage msg, string upper, string lower, List <IOTAlarmData> lstIOTAlarmMessage)
{
if (!upper.Equals(null) && !upper.Equals("NA"))
{
if (msg.parameterValue > Convert.ToDouble(upper))
{
var alarmData = new IOTAlarmData()
{
id = System.Guid.NewGuid().ToString(),
alarmTypeId = "1309",
alarmStateId = "0",
eventTime = DateTimeOffset.UtcNow.ToString("yyyy-MM-ddTHH:mm:ssZ"),
source = msg.metricCategory,
note = "System Alarm",
userId = "System",
siteId = msg.siteId
};
lstIOTAlarmMessage.Add(alarmData);
}
}
if (!lower.Equals(null) && !lower.Equals("NA"))
{
if (msg.parameterValue < Convert.ToDouble(lower))
{
var alarmData = new IOTAlarmData()
{
id = System.Guid.NewGuid().ToString(),
alarmTypeId = "1310",
alarmStateId = "0",
eventTime = DateTimeOffset.UtcNow.ToString("yyyy-MM-ddTHH:mm:ssZ"),
source = msg.metricCategory,
note = "System Alarm",
userId = "System",
siteId = msg.siteId
};
lstIOTAlarmMessage.Add(alarmData);
}
}
}
// Async method to send tags telemetry
private static async void SendDeviceToCloudMessagesAsync()
{
while (true)
{
OPCServerMock srv = new OPCServerMock();
var isConnected = srv.Connect(oPCDAServerUrl);
Console.WriteLine("Connected to OPCDA Server:" + srv.IsConnected);
if (!isConnected)
{
await Task.Delay(Convert.ToInt32(connectionTimeout) * 60000);
continue;
}
// OPCServerClient opcClient = new OPCServerClient(srv);
// Create JSON message
try
{
var results = srv.ReadTagVal(tags.Keys);
Console.WriteLine("Number of tags data:" + results.Length);
List <IOTMessage> lstIOTMessage = new List <IOTMessage>();
List <IOTAlarmData> lstIOTAlarmMessage = new List <IOTAlarmData>();
foreach (var item in results)
{
var tagparts = item.ItemName.Split('.');
var siteidValue = tagparts[2].Substring(0, 10);
var floorNumber = siteidValue.Substring(8);
var device = tagparts[2].Substring(11).Split('#');
var lineNumber = "0";
var parameterName = "";
var opcTagObj = tags[item.ItemName];
if (tagparts[3].ToLower().Contains("line"))
{
lineNumber = tagparts[3].Split('-')[0].Trim();
parameterName = tagparts[3].Split('-')[1].Trim();
}
else
{
parameterName = tagparts[3].Trim();
}
var telemetryDataPoint = new IOTMessage
{
//OPCTag = item.ItemName,
id = System.Guid.NewGuid().ToString(),
metricCategory = opcTagObj.Description,
siteId = siteidValue,
FloorNumber = floorNumber,
DeviceName = device[0],
DeviceAddress = string.Concat("#", device[1]),
//ParameterName = parameterName,
//parameterValue = Convert.ToDouble(item.Value),
parameterValue = opcTagObj.Index * Convert.ToDouble(item.Value),
unit = opcTagObj.Unit,
LineNum = lineNumber,
ReceivedTime = item.Timestamp.ToUniversalTime().ToString("yyyy-MM-ddTHH:mm:ssZ"),
messageType = "Metric"
};
lstIOTMessage.Add(telemetryDataPoint);
ThreshholdDetect(s_deviceClient, telemetryDataPoint, opcTagObj.ThresholdUpper, opcTagObj.ThresholdLower, lstIOTAlarmMessage);
}
if (lstIOTAlarmMessage.Count != 0)
{
var alarmMessage = new IOTAlarmMessage()
{
time = DateTimeOffset.UtcNow.ToString("yyyy-MM-ddTHH:mm:ssZ"),
data = lstIOTAlarmMessage,
type = "Threshold",
messageType = "Alarm"
};
var alarmMsgString = JsonConvert.SerializeObject(alarmMessage);
var alarmMsg = new Message(Encoding.UTF8.GetBytes(alarmMsgString));
await s_deviceClient.SendEventAsync(alarmMsg);
Console.WriteLine("{0} > Sending alarm message: {1}", DateTime.Now, alarmMsgString);
lstIOTAlarmMessage.Clear();
}
var messageString = JsonConvert.SerializeObject(lstIOTMessage);
var message = new Message(Encoding.UTF8.GetBytes(messageString));
// Add a custom application property to the message.
// An IoT hub can filter on these properties without access to the message body.
// message.Properties.Add("temperatureAlert", (currentTemperature > 30) ? "true" : "false");
// Send the telemetry message
await s_deviceClient.SendEventAsync(message);
Console.WriteLine("{0} > Sending message: {1}", DateTime.Now, messageString);
await Task.Delay(Convert.ToInt32(streamInterval));
}
catch (Exception ex)
{
if (ex.Message == "Not connected to OPC server")
{
continue;
}
throw ex;
}
finally
{
srv.DisConnect();
}
}
}